The customer agent reads persona.md with the spec, and writes each prompt in one style. It sends one prompt at a time. The agent never sees it.
- Tweak: short commands
- Describe: a sentence or two
- Specify: long, exact instructions
- Brief: one long brief, then small fixes
How the customer acts
- Talks like the owner: never mentions the test
- Adds detail: when a fix doesn't work
- Says what's still wrong: quotes what the agent claimed
- Keeps going: until every check passes, or 40 prompts